METHOD FOR ISOLATING OLIGOSACCHARIDES CONTAINING SIALIC ACID AND OBTAINED IN CONNECTION WITH THIS COMPOSITION CONTAINING OLIGOSACCHARIDES CONTAINING SIALIC ACID
1. A method for isolating carbohydrates containing sialic acid, and in particular sialyllactose, from a skim and preferably protein-free milk stream, wherein the milk stream is processed at the anion exchange stage using an anion exchange resin, preferably in the form of a free base, with a moisture content of 30-48% followed by an anion exchange step, preferably with a macroporous anion exchange resin or gel type anion exchange resin. ! 2. The method according to claim 1, where the second anion-exchange resin has a moisture content above 45% and preferably from 50 to 70%. ! 3. The method according to claim 1, where as the flow of milk using a stream of serum and preferably whey filtrate. ! 4. The method according to claim 2, where as a stream of milk using a stream of serum and preferably whey filtrate. ! 5. The method according to claim 1, where the milk stream before processing at any of the two stages of anion exchange is softened, preferably using ion exchangers in the form of sodium / chloride. ! 6. The method according to claim 2, where the milk stream before processing at any of the two stages of anion exchange is softened, preferably using ion exchangers in the form of sodium / chloride. ! 7. The method according to claim 3, where the milk stream before processing at any of the two stages of anion exchange is softened, preferably using ion exchangers in the form of sodium / chloride. ! 8. The method according to claim 4, where the milk stream before processing at any of the two stages of anion exchange is softened, preferably using ion exchangers in the form of sodium / chloride. ! 9. The method according to any one of claims 5 to 8, wherein the softening is carried out by precipitation of calcium ions and phosphate ions. ! 10. The method according to claim 5, where the flow mol1. Способ выделения углеводов, содержащих сиаловую кислоту, и в особенности сиалиллактозы из потока обезжиренного и, предпочтительно безбелкового молока, где поток молока подвергают
